'A'
A high sensitive fiber Bragg grating cryogenic temperature sensor
Author(s): Li K (Li, Kuo)1, Zhou ZA (Zhou, Zhen'an)1, Liu AC (Liu, Aichun)1  
Source: CHINESE OPTICS LETTERS    Volume: 7    Issue: 2    Pages: 121-123    Published: FEB 10 2009    
Addresses:
1. China Earthquake Adm, Inst Crustal Dynam, Beijing 100085, Peoples R China

'B'
High resolution cryogenic optical fiber sensor system using erbium-doped fiber
Author(s): Lee YW, Lee B  
Source: SENSORS AND ACTUATORS A-PHYSICAL    Volume: 96    Issue: 1    Pages: 25-27    Published: JAN 31 2002